it came in back of car when i bought it, didnt think finish too bad fitted ok was going on either way as my o/e shot, reading back previous post think baffles gone in rear < that japspeed and was already on car> sounds like somthing floating about in there lol and yes, without "bungs" was really bad even tickling throttle a real puller and noisy in car, replaced bungs much better, i may replace just back box if will fit the parts ive only fitted last week, may as well get some wear outta em